Coking-furnace.



L. L. SUMMBRS.

GOKING FUBNAGE.

APPLICATION FILED OGT. 4, 1909.

Patented'Dec. 14, 1909.

La ,QJ www *NN NN Cos 40 tort, the air space 2ML UNITED STATES PAENT OFFICE. y

LELND SUMMERS, OF CHICAGLO, I'IILLINOIS.

GOKING-FURNACE.

Specification of Letters Patent.

YPatented Dec. 1909.

Original application filed Marchvl, 19:09, Serial No. 484,354. Divided and this applicationfiileiiV October 4,

1909. Serial No. 520,929. i' f To all 'Lch-0m- -fit imi-y concern:

Be it know-n thatI, LELAND L. Suiiiinus,

a citizen of /the United States, residing at i Chicago, in the county of Cool; and State ot Illii'iois,'have invented certain ne7 and ia material treated therein may be efficiently conveyed therethi'migli from end to end, and

' at the saine time may be conducted into the retort in such condition as to facilitate the production of a compact and coherent colte i5. formed in large pieces.

.i further object attained by my invention resides in the fact that the material is supplied to the retort in such manner as to produce an efficient seal-against the entrance :o of atmospheric air or escape ot gases at the discharge end of the furnace Without the use of door or 4similar expediente.

The mechanism and mode .of action described in this application are fully set forth in my copending application Serial No.

484,354, 'and this application is filed as a part of the invention to 'be specifically claimed herein. y

Resting upon the floor of the retort is a reciprocable conveyer Hoor ,ft extending throughout the length of the retort. Means are provided 'for.reciprocating 4this tioor kendivisc ofthe retort, such means, preferably, consisting of a hydraulic cylinder 5 to l the plui'iger of which the. movable conveyor division of said copending application, for

the purpose of presenting claims to one of the forms of apparatus described and illus- 3o trated in said copending application.

floor is attached.

'lhe outlet or discharge end ,t of the ifetort is provided ivithrsouie form oi' seal, this being indicated generallyY in the accompanying draivii'igs by the closure (5, in which I have shown a conveyer T for carrying an ay the coke. )leans are provided adjacent the discharge end of the furnace for causing the gases distilled from the cooler freshly charged material to pass through the more highly heated carbonated material adjacent the discharge end. It ivill be understood that the material adjacent the discharge end will be inuch more highly heated than that at the charging end, by reason of its having been subjected to the heat of lihe retort for a longer period, and, further, by reason of the fact that the heated gases are discharged ,into the lines 3 at the discharge 'end A and gradually lose heat as they proceed in a zigi zag course across the top of the furnace to- In the drawings-Figure l la longitudinal Vertical section through a colring furnace ,I

embodying my invention, and Fig. lis a similar vieiv, showing the parts in a difter- 5 eut position.

j T he coking 'furnace illustrated, which may be one of manv-units constituting a complete plant, compris an outer" covering or arch l separated by airl air fmedium to vpreventft y of heat. Above the retort are a series of flues 3 by means o f ivhiclLthe retort is heated. Theseretorts are designed. to lead from i5 a suitable :furnace and' to conduct the prod- ",ucts of combustion therefrom back and forth f over the top of the retort from the discharge end A toivaid the charging end B, Where they are alloived to escape or are utilized 5o for other purposes.

I have. not illustrated and ivill not describe herein the speciiic construction of the heat-v ing furnace, for the reason that these elements are fully set forth in my` copending application above referred to and form no spaceplfrom the reving :is an insulating 'l radiation and Waste ivaid the charging end.

rl`he means illustrated for compelling thc distilled gases to pass throuvh the coke adjacent the discharge end of tzlie furnace consists of'a series of apertures S in the coni'eyer lioor, through which the gases escape or are dran-ii outward. ln the present instance l have shown a stationary lloor 9 beneath and supporting the conveyer tloor Je, said stationary floor being provided 'with grooves l() registeringl with the apertures S and openings ll leading from the base ol' said grooves into ducts l located beneath the 'stationary floor. It ivill be understood that there may be a plurality of rows otl apertures S and ll, together ivith a plurality of registering grooves 10. The ducts 1;). may communicate with the atmosphere or with treating and storing apparatus for the gases passing therethrough, and if desirable some degree of vacuum may be maintained in the duets i2 for the purpose of promoting the discharge of gases through the heated material in the retort. Inasinuch as these iatters are fullydescribed in n'iy copending application andare not involved in the invention claimed herein, further description thereof isunnecessary. At the charging end .y

of the fur-nace and spaced fromtheendwall thereof is a wall 13 forming in the present instance theV lower part of, a hopper 14 through which material is fed to theouter end' of the conveyer iioor 4. The .wall 13 extends vdownward into close'proximity with1 vthe upper surface of the Vconveyer floor et and serves to prevent the materiall upon the conveyor Hoor from being moved outwardly whenth'eioor is' drawn 'out through the.

"actioiiof the hydraulic cylinder 5. The

Sofiy ing -end of the retort. The entrance of at-. l

' per/14:, preferably,l .cient distance tol body of eoal.V v v y 4In Fig-.l the conveyer ioor is'illustrate'd as yinovedftoits inward position. When, throughthe action of the hydraulic cylinder extends upwardly a hold ya. considerable 5,.=or other ymechanism employed, the con-.I' 4vayer ioor is drawn outwardly to the position -shown 2, the material at the point- 15l which4l ropped tothe conveyor Atioi'ir from the hopper upon the previous inwardstroke'of the conveyerflolor is compressed to a considerable extent against the `wiall'l. IThis compression results from the fact that upon the outward movement of the conveyer floor it tends to daw the material resting-thereon with it, and this material bee sidewalls of the hopper is conilcompressed against said walls. ression vand compacting of the materiala-t the-point 15 is further contribted-to by the .weight of the superimposed f'oa'l in the hopper lil, and upon the next invar'd ,movement of'l the conveyer floor this lI'mpacted freshly fed material is carried :forward into'the retort, t-husperinittii'ig ad- .'dition'al material' to ldrop from the hopper" nponthe conveyer floor, whereupon the con-v ;'tinued action of the'floor brings about a i'ep- 'etitien ofthe steps labove explained. The

compactingof the material as aboveriexplained facilitates the formation of a conrpact 'and coherent coke, and, furthermore, :serves vthe function of contributing to the formation of an effectual seal at the chargmpspheric air or the escape of gases at the charging end is prevented by the coal in the :hopper and in the retort adjacent v`,the

charging end.

By the use of the conveying means above described, the material is moved through the retort Vwith comparative ease and the walls of .the retort are free from any outward.

pressure,- such' as is incident to the use of ramsv acting directly upon the materialV charged to the retort. In the case'of a long. 'etort, any attempt to force material theremroiigh from. end to end by means of force diicing an injurious outward t dfby the wall vl?) and being conf to said material, as' by sutiicient force feeding material to one en d of, saidv oor,

means for retaining' a body of vmaterial above'the point at which itisfed to said iioorand forrestraining the material against' movement except' in a direction toward the retort.

3. A colnng furnace comprising a retort, a reciprocable floor extending f through vthe retort from end to end, means for feeding material to one end of said floor and for. restraining the material against movement except in a direction through the retort from the point at which theinateigial is f ed thereto.

4t. Alcoking furnace-comprising a retort,l

a reciprocable Hoor extending through the retort from end tov end, means for AfeedingI material to one end of said Hoor, means for retaining a body` of material above the point atwliicli it is .fed to vsaid floor and for restraining the inaterial'against movement except in a direction toward the4 retort. '1,1

5. In a cjoking furnace, a retort, a reciprovioo cable Hoor iii-said retort, s'aic l floor extending throughout the length of said'retort and Aprojecting beyond the end of the' retortat the charging end, and a retaining and stripping wall above the p'rojectingend of said floor.

6. In a coking furnace', a retort, a reciprocable Hoor in said retort,' saidlioor extending throughout the length of said retort and projecting beyond the -end of theretort at Ithe charging end, and a hopper` above the projecting end of saidvloor, said hopper ex-' tendinggdownward into proximity-with said recipiocable floor. l. y 7. In a eolring furnace, a retort, a reciprocable conveyor iioor, means for sea-ling said retort at the discharge end, a hopper extend'- ing upwardly from the charging end of s aid retort and having its outer wall extending downwardly into proximity with the upper surface of said conveyer floor, and means for reciprocating said coiiveyer Hoor. i v

In testimony whereof, I have subscribed my name.

LELAND L. SUMMERS. IVitnesses -WAL'rnn A. Sco'r'r, HENRY A. PARKS. 

